.box {
  overflow: hidden;
  min-height: 500px;
}
.box .box-main {
  width: 1200px;
  margin: 0 auto;
  color: #444;
  font-size: 16px;
}
.box .box-main .main-hero {
  background: #fff;
  min-height: 300px;
  padding: 10px;
  color: #000;
}
.box .box-main .main-hero .row-left {
  text-align: center;
}
.box .box-main .main-hero .row-left img {
  width: 680px;
}
.box .box-main .main-hero .row-right {
  -ms-flex: 0 0 41.666667%;
  flex: 0 0 41.666667%;
  max-width: 41.666667%;
  padding-left: 20px;
}
.box .box-main .main-hero .row-right h1 {
  font-size: 34px;
  margin-bottom: 20px;
  margin-top: 30px;
}
.box .box-main .main-hero .row-right p {
  line-height: 30px;
  margin-bottom: 20px;
  margin-top: 20px;
}
.box .box-main .main-hero .row-right p.describe {
  color: #787878;
}
.box .box-main .main-hero .row-right .list-describe {
  line-height: 2;
  padding-bottom: 10px;
  border-bottom: 1px #ccc solid;
  color: #444;
}
.box .box-main .main-hero .row-right .list-describe span {
  display: inline-block;
  color: #787878;
  width: 200px;
}
.box .box-main .main-title {
  text-align: center;
  font-size: 40px;
  color: #283ca0;
  margin-bottom: 40px;
  font-weight: 600;
}
.box .box-main .main-describe {
  padding: 2% 5%;
  background: #f9f9f9;
}
.box .box-main .main-describe .info {
  margin-top: 15px;
  padding: 0 20px;
  color: #000;
}
.box .box-main .main-describe .info h3 {
  font-size: 20px;
  line-height: 2;
}
.box .box-main .main-describe .info h3.title {
  margin-top: 20px;
}
.box .box-main .main-describe .info p {
  line-height: 1.7;
  color: #a6a6a6;
  font-size: 16px;
}
.box .box-main .main-describe .info .video {
  margin-top: 30px;
}
.box .box-main .main-describe .info .video h3 {
  display: inline-block;
  font-size: 16px;
  padding: 8px 20px;
  background: #283ca0;
  border-radius: 50px;
}
.box .box-main .main-describe .info .video h3 a {
  color: #fff;
  text-decoration: none;
}
.box .box-main .main-list .list .item-box:last-child {
  margin-top: 60px;
}
.box .box-main .main-list .list .item-box {
  display: flex;
  justify-content: space-between;
}
.box .box-main .main-list .list .item-box .item {
  width: 33%;
}
.box .box-main .main-list .list .item-box .item img {
  width: 100%;
}
.box .box-main .main-list .list .item-box .item p {
  text-align: center;
  padding: 10px;
  font-size: 18px;
}
.row {
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
}
@media (max-width: 768px) {
  .box .box-main {
    width: 100%;
  }
  .box .box-main .main-hero .row-left img {
    width: 100%;
  }
  .box .box-main .main-hero .row-right {
    flex: none;
    max-width: 100%;
    margin: 0 15px;
    padding: 15px;
    font-size: 14px;
    line-height: 24px;
  }
  .box .box-main .main-hero .row-right h1 {
    font-size: 16px;
    text-align: center;
  }
  .box .box-main .main-title {
    color: #283ca0;
    font-size: 18px;
  }
  .box .box-main .main-describe .info h3 {
    font-size: 16px;
    color: #000;
    line-height: 2;
  }
  .box .box-main .main-describe .info p {
    font-size: 12px;
    color: #999999;
    line-height: 2;
  }
  .box .box-main .main-describe .info .video {
    margin-top: 10px;
    margin-left: 5px;
  }
  .box .box-main .main-describe .info .video h3 {
    padding: 5px 10px;
    font-size: 12px;
  }
  .box .box-main .main-list .list .item-box {
    display: block;
  }
  .box .box-main .main-list .list .item-box .item {
    width: 100%;
  }
}
